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Identification of potential core genes and miRNAs in testicular seminoma via bioinformatics analysis

文献类型： 外文期刊

作者： Wang, Kai 1 ; Chen, Yun 1 ; Zhao, Zhihong 1 ; Feng, Meiying 1 ; Zhang, Shouquan 1 ;

作者机构： 1.South China Agr Univ, Coll Anim Sci, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, 483 Wushan Rd, Guangzhou 510642, Guangdong, Peoples R China

2.Zhaoqing Univ, Coll Life Sci, Zhaoqing 526061, Guangdong, Peoples R China

关键词： testicular seminoma; microarray analysis; hub genes; microRNAs; prognosis

期刊名称：MOLECULAR MEDICINE REPORTS （ 影响因子：2.952； 五年影响因子：2.754 ）

ISSN： 1791-2997

年卷期： 2019 年 20 卷 5 期

页码：

收录情况： SCI

摘要： Testicular seminoma is one of the most common tumours in the field of urology, and its aetiology is still unclear. The aim of the present study was to identify the factors responsible for the development of testicular cancer and to investigate whether mutations in these genes were primarily congenital or acquired. To identify the key genes and miRNAs linked to testicular seminoma, as well as their potential molecular mechanisms, the GSE15220, GSE1818 and GSE59520 microarray datasets were analysed. A total of 5,195 and 1,163 differentially expressed genes (DEGs) were identified after analysing the GSE15220 and GSE1818 datasets, respectively. Among them, 287 genes were common between the two datasets. Of these, 110 were upregulated and 177 were downregulated. Five differentially expressed microRNAs (miRs; DEMs) that were downregulated in seminoma were identified after analysing the GSE59520 dataset. Following protein-protein interaction network and Gene Ontology analysis, the five nodes with the highest degrees were screened as hub genes. Among them, the high expression of hub genes, such as protein tyrosine phosphatase receptor type C (PTPRC), was associated with worse overall survival. We also predicted the potential target genes of the DEMs. DNA topoisomerase II alpha (TOP2A), marker of proliferation Ki-67 (MKI67), PTPRC and ubiquitin conjugating enzyme E2 C were associated with the PI3K/AKT and Wnt/beta-catenin signalling pathways. In addition, hsa-miR-650 and hsa-miR-665 were associated with the PI3K/AKT and Wnt/beta-catenin signalling pathways. Additionally, TOP2A and MKI67 were strongly associated with the target genes hsa-miR-650 and hsa-miR-665, respectively. We proposed that the hub genes reported in the present study may have a certain impact on cellular proliferation and migration in testicular seminoma. The roles of these hub genes in seminoma may provide novel insight to improve the diagnosis and treatment of patients with seminoma.

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